test: add test for external `Transaction` signing
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@ -439,3 +439,22 @@ test('serialize unsigned transaction', () => {
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expectedTransaction,
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);
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});
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test('get sign data for transaction', () => {
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const from_keypair = nacl.sign.keyPair.fromSeed(
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Uint8Array.from(Array(32).fill(1)),
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);
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const from = new Account(Buffer.from(from_keypair.secretKey));
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const to = new PublicKey(2);
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const recentBlockhash = new PublicKey(3).toBuffer();
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var tx = SystemProgram.transfer({
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fromPubkey: from.publicKey,
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toPubkey: to,
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lamports: 42,
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});
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tx.recentBlockhash = bs58.encode(recentBlockhash);
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const tx_bytes = tx.signData;
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const signature = nacl.sign.detached(tx_bytes, from.secretKey);
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tx.addSignature(from.publicKey, signature);
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expect(tx.verifySignatures()).toBe(true);
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});
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